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A temperature correction procedure for field-based soil denitrification experiments |
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| Authors: | P.J. Gardner N. Flynn E. Maltby |
| Affiliation: | Royal Holloway Institute for Environmental Research (RHIER) and Department of Geography, Royal Holloway, University of London, Huntersdale, Callow Hill, Virginia Water, Surrey, GU25 4LN, UK.;Current address: ADAS Bridgets, Martyr Worthy, Winchester, Hants., SO21 1AP, UK. |
| Abstract: | Abstract. An equation is developed to permit temperature correction (to some chosen reference temperature) for field-based soil columns that measure the depletion of nitrate in the water column above a soil layer where denitrification occurs. The derivation is based on the assumption that the overall nitrate depletion is diffusion controlled by the nitrate flux from the water column into the soil and the soil denitrification obeys Michaelis-Menten kinetics. The expression is tested on results from a large soil column maintained in a greenhouse where natural temperature cycling occurred. |
| Keywords: | Denitrification soil flooding equations temperature correction factors |